Transaction not yet indexed

Mpu8JmrJnqgscH2XZfBNNmXAW6cZXHyNDSCCA9CUVTCXN3MhHnMsLeWHyNKq9Af9UTWmRNAmLsRDXTMcoRWKxp8

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.